The Web was buzzing Friday with reports suggesting that Randy Jackson , the only remaining original "American Idol" judge, will follow Jennifer Lopez and Steven Tyler away from the judges table. A report at www.tmz.com called Jackson's exit "official," but said he would still be part of the show by mentoring the contestants. Meanwhile, a story at www.eonline.com played it safer, saying only that Jackson's future is "still up in the air" and adding that his role would not be decided until the rest of the judges are in place. So far, only Mariah Carey has officially signed on for the 12th season of the show, which begins in January. But several names have been thrown into the rumor mill as possible judges. Among them: Kevin Jonas , Katy Perry , Miley Cyrus , Kanye West and Enrique Iglesias . TMZ has been reporting that Nicki Minaj 's deal to be a judge is 99% done, and it reported Friday that Keith Urban is in "final negotiati...